Your request has been taken into account.

An email has just been sent to you with a link to download the resource :)

Greenly, la plateforme tout-en-un dédiée à toutes les entreprises désireuses de mesurer, piloter et réduire leurs émissions de CO2.
GreenlyGreenly, la plateforme tout-en-un dédiée à toutes les entreprises désireuses de mesurer, piloter et réduire leurs émissions de CO2.
Examining the Credibility of ESG Rating Agencies
Blog...Examining the Credibility of ESG Rating Agencies

Examining the Credibility of ESG Rating Agencies

man talking in a meeting
This article examines the legitimacy of ESG rating agencies amidst concerns over their evaluation transparency and reliability
man talking in a meeting

ESG rating agencies have become key players in the investment world, assessing companies' adherence to environmental, social, and governance (ESG) standards. Their ratings influence how and where investors choose to put their money, shaping the behaviour of corporate entities along the way. Yet, the rise of these agencies has sparked a debate over their legitimacy. Questions are being asked about the objectivity of their ratings, the clarity of their evaluation criteria, and their overall reliability. With significant sums tied to these ratings, the integrity of ESG rating agencies is under scrutiny more than ever before. 

👉 This article examines the legitimacy of ESG rating agencies amidst concerns over their evaluation transparency and reliability

The growing influence of ESG rating agencies

As awareness of environmental, social, and governance (ESG) issues grows, investors are increasingly turning to ESG ratings to make informed decisions. These ratings, provided by specialised agencies, have become a crucial tool for assessing the sustainability and ethical impact of companies. 

Retail investors use these ratings to align their portfolios with personal values, often seeking out funds with high ESG scores. Asset managers, on the other hand, rely on these ratings to mitigate long-term risks, as companies with robust ESG practices tend to demonstrate better resilience and performance over time.

Moreover, ESG ratings are influencing corporate decisions, driving companies to improve practices and transparency in order to attract investments. High ESG ratings can lead to lower borrowing costs and better terms of credit, making them a financial incentive for companies to operate sustainably. This influence is a testament to the growing influence of ESG rating agencies in shaping not just investment flows but also corporate behaviour worldwide. However, with this influence comes the responsibility to provide accurate and unbiased assessments. 

👉 Learn more about the different ESG criteria in our article.

youtube screenshot

Demand for transparency and accountability

Investors are increasingly demanding transparency and accountability from companies in which they invest, seeking detailed insights into their operational practices and long-term sustainability plans. This information is critical, as it allows investors to assess the potential risks and opportunities that could affect their investment's performance, especially from an ESG perspective. 

Within this context, the role of ESG rating agencies has become crucial. The methodologies these agencies employ to evaluate companies must be transparent and robust, providing clear justifications for the ratings assigned. Investors need to understand how ESG factors are weighed and measured, and how these translate into the final ratings. Transparent methodologies allow investors to trust the ratings and use them as a reliable benchmark for making investment decisions.

This demand for transparency extends to the accountability of ESG rating agencies themselves. Investors expect these agencies to operate without conflicts of interest, ensuring that ESG ratings are not only insightful but also impartial. As such, the onus is on ESG rating agencies to disclose their processes and criteria openly, allowing their evaluations to be scrutinised and verified. This transparency is essential for maintaining the integrity of ESG ratings and the trust of the investment community they serve.

👉 Discover the invaluable role of ESG reporting and why your company should be doing it in our article.

woman on her laptop

Challenges faced by ESG ratings agencies

Despite the clear demand for transparency and the pivotal role ESG rating agencies hold in investment decision-making, the sector faces significant challenges. These challenges stem from the current lack of standardisation in rating methodologies, which leads to discrepancies in the ratings and an unclear picture of a company’s true ESG performance. The financial and resource costs to businesses, the potential for conflicts of interest, and the absence of regulatory oversight further complicate the landscape. 

As we move forward, it is essential to address these issues head-on to ensure that ESG ratings not only guide investors but also reflect an accurate, unbiased, and comprehensive view of a company's sustainability practices. This next section will delve into the complexities of these challenges:

Costly for businesses 

It can be expensive for companies to employ the services of external ESG data ratings agencies. What’s more, is that the collection of ESG data to inform the ratings can also cost a company valuable time and resources. Corporate sustainability professionals or those involved with collecting and supplying the data often find themselves in an endless cycle of collecting and supplying ESG data. 

As the ESG reporting landscape becomes more complex, companies can expect to spend more time and money on this process, something that presents a challenge for ESG ratings agencies who will need to convince companies of their value by demonstrating that the ratings are worth the extra time and money. 

Contradictions in ESG ratings 

 ESG rating agencies use their own methodologies to collect and assess ESG information and data. Different agencies may ask for different data - for example, one may assess a company’s labour practices based on its turnover rate, whereas another may choose to look at the number of employment disputes brought against the company. The scope is another factor that contributes to a divergence in ESG ratings, for example, when assessing an organisation’s emissions impact some rating agencies may look at Scope 1, 2, and 3 emissions, whereas others may focus on Scope 1 and 2 only. This means that the ratings of different agencies can differ significantly from one another, which makes it very difficult for investors and other stakeholders to assess the true sustainability risk and performance of a company. 

👉 One MIT study found that the alignment between the ESG ratings of six top rating agencies was only 61% - this indicates that ESG ratings don’t always accurately reflect ESG performance. 

Lack of alignment in ESG ratings between agencies also incentivises companies to focus on more positive ESG ratings and to ignore potential issues highlighted by less flattering ratings. The issue highlights the need for a more unified approach to ESG ratings, allowing for a more fair comparison between organisations. 

ESG ratings are not evenly distributed 

ESG ratings are often a voluntary process and so only a fraction of companies submit to self-disclosure. This tends to be public companies, those listed on major stock exchanges, and those with high market caps. Companies in certain geographic regions are also more likely to submit data for ESG ratings - for example, those operating in Europe and the US. This uneven distribution means that investors and other stakeholders are faced with spotty ESG coverage, and companies are not able to accurately showcase how their sustainability performance ranks for their industry, or how they compare with market peers. 

ESG ratings are not predictive  

ESG ratings don’t always accurately predict the ESG risks faced by a company. Many ESG rating agencies imply that their reports can provide an indication of a company’s future ESG risk, however, recent studies show that they’re not reliably predictive. One factor contributing to this is that the sustainability landscape is rapidly evolving, which limits the use of a company’s historical data to predict future ESG risks. More reliable indicators of risk include the collection of more accurate data, and the prioritisation of a company’s forward trajectory instead of past performance.  

Conflict of interest  

In some cases there may even be a conflict of interest - this is because some ESG rating agencies also offer services relating to the ESG performance of a company, for example, they may help an organisation to improve its sustainability performance in addition to carrying out a rating of its EAG performance. This presents a conflict of interest and could potentially lead to the awarding of favourable ESG rating results. 

ESG rating agencies are unregulated 

Despite the critical role that ESG rating agencies play in the investment decisions of investors and other stakeholders, they are for the most part unregulated. This means that the market lacks oversight, standardisation, and consistency. It is also partly the reason behind the high rate of contradictions in ESG ratings between different agencies. The landscape however is quickly evolving and new rules and oversight are expected in a number of jurisdictions. This should help to bring consistency and improve comparability between ESG ratings. 

👉 Gain an insight into ESG reporting requirements on our blog

What does this mean for investors?

What it means is that investors and other stakeholders can’t simply take a company’s ESG rating at face value. A more in depth understanding is required to really comprehend what a company’s individual ESG rating represents and how it compares to market benchmarks. This means understanding what kind of data was collected, the scope of the ESG report, and the methodologies used by the ESG rating agency. By understanding these elements an investor or stakeholder can get a much more accurate understanding of a company’s ESG rating, and the potential risks associated.

Enhancing legitimacy and trust

As the demand for ESG compliance escalates, the need for reliable and legitimate ESG rating agencies has never been more apparent. To enhance trust and credibility in the ESG market, several measures can be adopted:


Standardisation of ESG Metrics

The introduction of standardised ESG metrics would significantly reduce inconsistencies in ratings. Establishing a universal set of criteria, which all agencies must adhere to when evaluating companies, would help in harmonising the ratings. This would not only make it easier for investors to compare different companies but would also pressure agencies to uphold a high standard of assessment.

Regulatory oversight

Regulatory bodies can play a pivotal role by providing oversight for ESG rating agencies. Similar to financial audits, ESG ratings could undergo regulatory checks to ensure they meet established guidelines and standards. This would help prevent conflicts of interest and promote a culture of transparency and accountability.

Third-party audits

Mandating third-party audits of ESG ratings could be another step towards legitimacy. These audits would review the methodology and effectiveness of an agency's rating system, providing an extra layer of scrutiny and reassurance to stakeholders.

Enhanced disclosure practices

Rating agencies should be encouraged, or even required, to disclose their evaluation processes, criteria, and potential conflicts of interest. By openly sharing this information, agencies will help companies and investors understand the foundation upon which their ratings are built.

Fostering industry collaboration

Encouraging collaboration among ESG rating agencies, perhaps through industry consortia, could lead to the development of best practices and benchmarks. Collective efforts could address current gaps in ratings, such as the underrepresentation of certain geographies or sectors.

Continuous improvement and adaptation

ESG rating agencies need to continuously evolve their methodologies to keep pace with the rapidly changing sustainability landscape. Incorporating new research findings and stakeholder feedback can help ensure that their ratings remain relevant and reliable.

Education and transparency for stakeholders

Educating investors and companies about the nuances of ESG ratings and what they represent can empower them to make more informed decisions. Increased transparency about the limitations and proper use of these ratings can also temper unrealistic expectations.

Enhanced data collection methods

The quality of ESG ratings is directly linked to the quality of data collected. Agencies must invest in advanced data collection methods that can capture a more comprehensive set of ESG indicators. This involves not only quantitative data but also qualitative information that can provide context to the numbers. Additionally, real-time data monitoring can offer a more dynamic and current reflection of a company's ESG performance, rather than relying on outdated reports.

Government intervention and policy-making

Governments can play a crucial role by enacting policies that define clear ESG reporting standards. This could include mandating ESG disclosures for companies and setting guidelines for how ESG rating agencies operate. By creating a legal framework for ESG compliance, governments can ensure a level playing field and help prevent greenwashing.

What about Greenly?

At Greenly we can help you to assess your company’s carbon footprint, and then give you the tools you need to cut down on emissions. Why not request a free demo with one of our experts - no obligation or commitment required. 

If reading this article has inspired you to consider your company’s own carbon footprint, Greenly can help. Learn more about Greenly’s carbon management platform here.

More Articles

View all
man looking at investment data on laptop
Kara Anderson

ESG investing: meaning and trends

ESG investing has proven to be one of the most durable investment trends over the past decade. Learn why all kinds of investors support ESG funds and investments.